Power cord sheath wire BVV
Because of the decoration of families now, wire pipes are generally used, Then use three copper wires (live wire, zero wire and grounding wire) are laid through the conduit. However, the sheathed wire is much safer than ordinary wires, so it is still more useful in home decoration in the construction field. The sheathed wire is the power wire used in the past. In the past, the sheathed wire was used as the lighting and power wire in home decoration; it can be directly buried in the wall or fixed on the wall. Its advantage is that it can be omitted The threading pipe or trunking is replaced by a layer of outer sheath insulation. It is convenient, fast, good-looking and safe to use. It is a good choice for connecting household mobile plug-in boards, refrigerators or air conditioners.
In fact, the sheath wire can be understood as two or three parallel bv wires. The BV wires originally have insulating rubber. Wrap a layer of rubber outside the three or two parallel bv wires. This layer of rubber is the sheath wire. Sheathed wire is also a common household wire, which is usually composed of three or two cores.
Specification and model
Sheath wire model:
Commonly used copper sheathed wires generally include BVV, BVVB, RVV, rvvb, and aluminum sheathed wires blvv, BLVVB
Sheath wires can be divided into hard sheath wires (BVV, BVVB, blvv, BLVVB) and soft sheath wires (RVV, rvvb). According to their application environment and shape, they can also be divided into circular sheath wires and flat sheath wires. Circular sheath wires are generally multi-core and flat wires are generally single core.
In the above sheath wire
50: Representative aluminum core
5: Represents PVC insulation
5: Represents PVC sheath
***Four common sheath wire specifications:
BVV copper core PVC insulated PVC sheathed round cable (wire)
Blvv aluminum core PVC insulated PVC sheathed round cable (wire)
BVVB copper core PVC insulated PVC sheathed flat cable (wire)
BLVVB aluminum core PVC insulated PVC sheathed flat cable (wire)